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• Ubuntu server has slow performance

  - by Rich

  I have a custom built Ubuntu 11.04 server with a 6 disk software RAID 10 primary drive. On it I'm primarily running a PostgreSQL and a few other utilities that stream data from the web. I often find after a few hours of uptime the server starts to lag with all kinds of processes. For example, it may take 10-15 seconds after log-in to get a shell prompt. It might take 5-10 seconds for top to come up. An ls might take a second or two. When I look at top there is almost no CPU usage. There's a fair amount of memory used by the PostgreSQL server but not enough to bleed into swap. I have no idea where to go from here, other than to suspect the RAID10 (I've only ever had software RAID 1's before). Edit: Output from top: top - 11:56:03 up 1:46, 3 users, load average: 0.89, 0.73, 0.72 Tasks: 119 total, 1 running, 118 sleeping, 0 stopped, 0 zombie Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 93.5%id, 6.2%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16325596k total, 3478248k used, 12847348k free, 20880k buffers Swap: 19534176k total, 0k used, 19534176k free, 3041992k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1747 woodsp 20 0 109m 10m 4888 S 1 0.1 0:42.70 python 357 root 20 0 0 0 0 S 0 0.0 0:00.40 jbd2/sda3-8 1 root 20 0 24324 2284 1344 S 0 0.0 0:00.84 init 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd 3 root 20 0 0 0 0 S 0 0.0 0:00.24 ksoftirqd/0 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 7 root RT 0 0 0 0 S 0 0.0 0:00.01 watchdog/0 8 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 10 root 20 0 0 0 0 S 0 0.0 0:00.02 ksoftirqd/1 12 root RT 0 0 0 0 S 0 0.0 0:00.01 watchdog/1 13 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/2 14 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/2:0 15 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/2 16 root RT 0 0 0 0 S 0 0.0 0:00.01 watchdog/2 17 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/3 18 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/3:0 19 root 20 0 0 0 0 S 0 0.0 0:00.02 ksoftirqd/3 20 root RT 0 0 0 0 S 0 0.0 0:00.01 watchdog/3 21 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset 22 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper 23 root 20 0 0 0 0 S 0 0.0 0:00.00 kdevtmpfs 24 root 0 -20 0 0 0 S 0 0.0 0:00.00 netns 26 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers df -h rpsharp@ncp-skookum:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 1.8T 549G 1.2T 32% / udev 7.8G 4.0K 7.8G 1% /dev tmpfs 3.2G 492K 3.2G 1% /run none 5.0M 0 5.0M 0% /run/lock none 7.8G 0 7.8G 0% /run/shm /dev/sda2 952M 128K 952M 1% /boot/efi /dev/md0 5.5T 562G 4.7T 11% /usr/local free -m psharp@ncp-skookum:~$ free -m total used free shared buffers cached Mem: 15942 3409 12533 0 20 2983 -/+ buffers/cache: 405 15537 Swap: 19076 0 19076 tail -50 /var/log/syslog Jul 3 06:31:32 ncp-skookum rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="1070" x-info="http://www.rsyslog.com"] rsyslogd was HUPed Jul 3 06:39:01 ncp-skookum CRON[14211]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jul 3 06:40:01 ncp-skookum CRON[14223]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 07:00:01 ncp-skookum CRON[14328]: (woodsp) CMD (/home/woodsp/bin/mail_tweetupdate # email an update) Jul 3 07:00:01 ncp-skookum CRON[14327]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 07:00:28 ncp-skookum sendmail[14356]: q63E0SoZ014356: from=woodsp, size=2328, class=0, nrcpts=2, msgid=<[email protected]>, relay=woodsp@localhost Jul 3 07:00:29 ncp-skookum sm-mta[14357]: q63E0Si6014357: from=<[email protected]>, size=2569, class=0, nrcpts=2, msgid=<[email protected]>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1] Jul 3 07:00:29 ncp-skookum sendmail[14356]: q63E0SoZ014356: to=Spencer Wood <[email protected]>,Martin Lacayo <[email protected]>, ctladdr=woodsp (1004/1005), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=62328, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (q63E0Si6014357 Message accepted for delivery) Jul 3 07:00:29 ncp-skookum sm-mta[14359]: STARTTLS=client, relay=mx3.stanford.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256 Jul 3 07:00:29 ncp-skookum sm-mta[14359]: q63E0Si6014357: to=<[email protected]>,<[email protected]>, ctladdr=<[email protected]> (1004/1005), delay=00:00:01, xdelay=00:00:00, mailer=esmtp, pri=152569, relay=mx3.stanford.edu. [171.67.219.73], dsn=2.0.0, stat=Sent (Ok: queued as 8F3505802AC) Jul 3 07:09:08 ncp-skookum CRON[14396]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jul 3 07:17:01 ncp-skookum CRON[14438]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jul 3 07:20:01 ncp-skookum CRON[14453]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 07:39:01 ncp-skookum CRON[14551]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jul 3 07:40:01 ncp-skookum CRON[14562]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 08:00:01 ncp-skookum CRON[14668]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 08:09:01 ncp-skookum CRON[14724]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jul 3 08:17:01 ncp-skookum CRON[14766]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jul 3 08:20:01 ncp-skookum CRON[14781]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jul 3 08:39:01 ncp-skookum CRON[14881]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jul 3 08:40:01 ncp-skookum CRON[14892]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Output of hdparm -t /dev/sd{a,b,c,d,e,f} This looks suspicious? /dev/sda: Timing buffered disk reads: 2 MB in 4.84 seconds = 423.39 kB/sec /dev/sdb: Timing buffered disk reads: 420 MB in 3.01 seconds = 139.74 MB/sec /dev/sdc: Timing buffered disk reads: 390 MB in 3.00 seconds = 129.87 MB/sec /dev/sdd: Timing buffered disk reads: 416 MB in 3.00 seconds = 138.51 MB/sec /dev/sde: Timing buffered disk reads: 422 MB in 3.00 seconds = 140.50 MB/sec /dev/sdf: Timing buffered disk reads: 416 MB in 3.01 seconds = 138.26 MB/sec

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• edit .avi movie cut

  - by c0mrade

  Hello everybody, how can I edit .avi file .. let say I want first 20 seconds to play and from 120th sec untill 150th sec .. and take that out of the entire movie, with which software I can do that ?

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• Just to not to be ignorant.

  - by atch

  Could anyone explain to me why is it that producers of processors claim that their processor can perform so many thousands (or millions) operations per second and yet typical program (Word, VS etc.) on my machine with 4GB, 3500hz starts with no less than 10 sec. Have to mention that I've just formatted disk and tick any necessary boxes to optimize my machine. So if for example outlook starts in 10 sec I wonder how many millions of operations have to be performed to run such program? Thanks

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• wondering how much data bandwidth can a 3G gsm cell tower can support?

  - by Karim

  i was always wondering how many simaltinues users can a 3G tower supports with its data rates? i mean they advertize 28.8Mb/Sec for the 3G Data but in reallity if a lot of people use it say 10 , it wont give 288Mb/Sec bandwidth. i didnt find anywhere where such information is published so i thought to ask here. dont know why the cell operators keep it such a secret :)

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• How to specify what network interface to use with TTCP or IPERF?

  - by Sammy

  The PC has two Gigabit Ethernet ports. They function as two separate network adapters. I'm trying to do a simple loopback test between the two. I've tried TTCP and IPERF. They're giving me hard time because I'm using the same physical PC. Using pcattcp... On the receiver end: C:\PCATTCP-0114>pcattcp -r PCAUSA Test TCP Utility V2.01.01.14 (IPv4/IPv6) IP Version : IPv4 Started TCP Receive Test 0... TCP Receive Test Local Host : GIGA ************** Listening...: On TCPv4 0.0.0.0:5001 Accept : TCPv4 0.0.0.0:5001 <- 10.1.1.1:33904 Buffer Size : 8192; Alignment: 16384/0 Receive Mode: Sinking (discarding) Data Statistics : TCPv4 0.0.0.0:5001 <- 10.1.1.1:33904 16777216 bytes in 0.076 real seconds = 215578.95 KB/sec +++ numCalls: 2052; msec/call: 0.038; calls/sec: 27000.000 C:\PCATTCP-0114> On the transmitter end: C:\PCATTCP-0114>PCATTCP.exe -t 10.1.1.1 PCAUSA Test TCP Utility V2.01.01.14 (IPv4/IPv6) IP Version : IPv4 Started TCP Transmit Test 0... TCP Transmit Test Transmit : TCPv4 0.0.0.0 -> 10.1.1.1:5001 Buffer Size : 8192; Alignment: 16384/0 TCP_NODELAY : DISABLED (0) Connect : Connected to 10.1.1.1:5001 Send Mode : Send Pattern; Number of Buffers: 2048 Statistics : TCPv4 0.0.0.0 -> 10.1.1.1:5001 16777216 bytes in 0.075 real seconds = 218453.33 KB/sec +++ numCalls: 2048; msec/call: 0.037; calls/sec: 27306.667 C:\PCATTCP-0114> It's responding alright. But why does it say 0.0.0.0? Is it passing through only one of the network adapters? I want 10.1.1.1 to be the server (receiver) and 10.1.1.2 to be the client (transmitter). These are the IP addresses assigned manually to each network adapter. How do I specify these addresses in TTCP? There is also the IPERF tool which has the -B option. Unfortunately I've been only able to use this option to bind the server to the 10.1.1.1 address. I was unable to bind the client to the 10.1.1.2 address. I might be doing it wrong. Can the -B option be used for both the server as well as the client side? What does the syntax look like for the client?

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• MySQL Execution Time Spikes

  - by Brett

  I am having issues with MySQL all of the sudden today. Details: OS: CentOS release 5.7 Server type: Parallels virtuozzo container running on mediatemple DV 4.0 package Average total memory usage: <500mb Total memory usage allowed: 1gb (part of shared pool for emergency only, users are only guaranteed 500mb) Processor: 1ghz Main database sizes with most usage: 275mb & 107mb server stack: nginx 1.0.10, mysql 5.1.54, php 5.3.8 with php-fpm innodb_buffer_pool_size=100M php-fpm max children: 5 Webapps: custom php-based sites, magento & drupal slow query timeout is set to 1 second Steps I completed towards diagnosis: Cannot restart container yet - I will try later tonight when our domestic traffic has dropped Enabled mysql and php-fpm slowlog. Found functions that did DB queries in php-fpm slowlog were taking over 1s to complete at times Found some simple queries in mysql slowlog taking well over 1s to complete that should take less than 1s. Most interesting - execution time seems to spike at times. A query will take .2s a couple times, then one time it will take 8s to run the same query. These results were verified by running raw SQL queries through mysql command line. Top does not reveal anything too interesting Only resource related thing i can see is load averages much higher than normal Up until today, mysql has been fine, there have been no major changes to the db since yesterday. Sometimes things are so bad, I am seeing bad gateway errors after 60s of execution time. Innodb is doing on average 300-1400 reads/sec. Mysql is doing 3-10 queries/sec slow query count in 2 hours uptime is 171 (with slow timeout at 1 second) Tried restarting mysql, nginx, php-fpm multiple times For example: UPDATE `catalogsearch_query` SET `query_text` = 'EW 90', `num_results` = '7532', `popularity` = '99180', `redirect` = NULL, `synonym_for` = NULL, `store_id` = '1', `display_in_terms` = '1', `is_active` = '1', `is_processed` = '1', `updated_at` = '2012-05-08 21:38:31' WHERE (query_id='31'); This query took 17sec to complete one time, rest of the time around .079 sec. But varies, sometimes 1sec, sometimes .004 sec. This is running the same query, over and over with a couple seconds time in between each. Most tables are innodb, and sometimes I noticed the lock time taking 90% of the query execution time, but most of the time lock time is insignificant. Any idea what's going on here?

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• How much data bandwidth can a 3G gsm cell tower can support?

  - by Karim

  I was always wondering how many simultaneous users can a 3G tower supports with its data rates? I mean they advertise 28.8Mb/Sec for the 3G Data but in reality if a lot of people use it say 10 , it wont give 288Mb/Sec bandwidth. I didn't find anywhere where such information is published so I thought to ask here. Don' know why the cell operators keep it such a secret :)

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• How to get higher download rate than upload rate

  - by user23950

  i'm using bandwidthplace.com to measure my internet speed. And here it is: Download Speed: 422 kbps (52.8 KB/sec transfer rate) Upload Speed: 202 kbps (25.3 KB/sec transfer rate) Can you please explain to me how did they get the 52.8 transfer rate. And how do I get to lower the upload speed in order for me to get higher download speed.

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• Why is Hard Disk Access Slow Through a Virtual Machine?

  - by Earl

  Why is throughput to an external hard drive from a virtual machine much slower than through the host? Access is generally 30MB/sec from the host and 4MB/sec frm the client. Is this normal?

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• Wildcard subdomain to file htaccess

  - by Mikkel Larson

  I've have a problem with a htaccess wildcard redirect My base configuration is set to work with: www.domain.com and domain.com this is governed by 2 .htaccess files: 1: /home/DOMAIN/public_html/.htaccess AddDefaultCharset utf-8 RewriteEngine on RewriteCond %{HTTP_HOST} ^(www.)?festen.dk$ RewriteCond %{REQUEST_URI} !^/public/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ /public/$1 RewriteCond %{HTTP_HOST} ^(www.)?festen.dk$ RewriteRule ^(/)?$ public/index.php [L] 2: /home/DOMAIN/public_html/public/.htaccess AddDefaultCharset utf-8 <IfModule mod_rewrite.c> Options +FollowSymLinks RewriteEngine On </IfModule> <IfModule mod_rewrite.c> RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L] </IfModule> Now i want to redirect: www.[SUBDOMAIN].domain.com/[PATH] and [SUBDOMAIN].domain.com/[PATH] to public/index.php/subdomaincontroller/realsubdomain/[PATH] My solution so far: Added following to 2: /home/DOMAIN/public_html/public/.htaccess <IfModule mod_rewrite.c> RewriteCond %{HTTP_HOST} !www.domain.com$ [NC] RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+)domain.com [NC] RewriteRule (.*) subdomaincontroller/realsubdomain/%2/$1 [L] </IfModule> Sadly this dows not work. Can anyone help me please?

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• how to disable these logs on the screen?

  - by user62367

  using Fedora 14: http://pastebin.com/raw.php?i=jUvcfugw i mount an anonym Samba share [checks it in every 5 sec] it's working, ok, great! But: when i shut down my Fedora box, i can see the lines containing this scripts lines! Many times, about ~50x on the screen. How could i disable these lines when shutting down? I [and other people] don't want to see those lines for about ~ 5 sec Thank you!

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• Waht are the best proxy servers for Mikrotik router?

  - by niren

  I want to setup proxy server for my Mikrotik router. There is inbuilt web-proxy for Mikrotik router but I can extend this upto transparent proxy(kind of proxy server) only. We need High anonymity proxy so that we can hide our LAN static IPs(we don't have private IP) from outside Intruder/hackers. And also I know I can setup NAT rule to hide our IP(only private IP not public/static IP) as per this link, but I cann't hide static/public IP. Essentially I want to hide our Public/Static IP (there is static/public IP for all systems in our company) from outside Internet. To achieve this I guess I need other software apart from Mikrotik router gateway setup. can anyone suggest me Is there any other software to achieve my requirement? I know about squid proxy but am not sure whether It can hide our static/public IP. Note: we have assigned public/Static IP to all systems of our company since we have rights to access our company's system from anywhere by dedicated laptop(given by our company with more security) through VPN connection.

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• Why is Windows "stuck" on the Welcome screen for so long?

  - by Perdana Putra

  I use Windows 7 with a laptop specifications processor core (Core i3), 2 GB DDR3 RAM, the remaining capacity on the system partition (25 GB). I do not know why the "welcome screen" takes a long time (about 40 sec), but yesterday only took about 10 sec., I tried to defragment the disk and do a virus & spyware scan with antivirus, but still the "Welcome screen" comes along. How do I get the welcome screen to pass by faster when Windows boots up?

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• Can I put a SATA2 HDD into a laptop supporting SATA1?

  - by user22559

  I have a laptop that supports SATA1 (1.5 GB/sec) The HDD for it has bad sectors, and I want to buy another one. It seems that where I live, SATA1 notebook HDDs aren't really available (only if you wait for a few weeks for them to be delivered), and they cost more than SATA2 HDDs. So I was wondering if I buy a SATA2 (3GB/sec) HDD, will it work without problems on my laptop? The laptop is an HP Pavilion DV6000

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• single web app multible webservers

  - by Ramakrishna

  hi guys, Hi have a prob of load balancing we developed a web app using nearly 1500/- users parallely so the number of users increased we are unable to serve the requests that much of faster, its takes around 10 to 20 sec to load a page if page having heavy weight it takes 1min also. we need to solve this situation and we have to serve each request with in 2 to 3 sec App develped in : asp.net hosted in : IIS 7.5 Machine configuration : Windows server 2008 8GB RAM 1MBPS band width

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• Non-expensive way to establish FAST connection between notebook and PC?

  - by java.is.for.desktop

  Hello, everyone! I have a notebook with 100Mbit Ethernet, and often need to transfer gigabytes of data to/from PC. Using "only" 100Mbit (12.5MB/sec) is slow: I get max 10MB/sec, no matter what protocol is used (SSHFS, SMB, ...). Of course, it's the overhead. What kind of alternative and non-expensive hardware would you suggest, which would allow much higher transfer speeds?

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• MySQL query cache is enabled but not being used

  - by Yoga

  I've checked the query cache is enabled mysql> SHOW VARIABLES LIKE 'have_query_cache'; +------------------+-------+ | Variable_name | Value | +------------------+-------+ | have_query_cache | YES | +------------------+-------+ 1 row in set (0.00 sec) But seems it is not being used mysql> SHOW STATUS LIKE 'Qcache%'; +-------------------------+----------+ | Variable_name | Value | +-------------------------+----------+ | Qcache_free_blocks | 1 | | Qcache_free_memory | 16759648 | | Qcache_hits | 0 | | Qcache_inserts | 0 | | Qcache_lowmem_prunes | 0 | | Qcache_not_cached | 21555882 | | Qcache_queries_in_cache | 0 | | Qcache_total_blocks | 1 | +-------------------------+----------+ 8 rows in set (0.00 sec) Any reason?

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• Apache on Ubuntu very slow on inital calls, very fast afterwards

  - by papakost

  I own an Ubuntu 10 VPS Server with Apache 2 hosting a Magento website. The first hit to the site from any client takes about 15-20 sec, while the subsequent hits from the same client take 0-1 sec. I suppose it doesn't have to do with Magento caching, because this happens also when the first call is on a very light page and the next calls are on heavy ones. Does anyone have an idea on what is going wrong here?

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• error CS0177: The out parameter 'Wx' must be assigned to before control leaves the current method

  - by sonny5

  using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form { public static float WXmin; public static float WYmin; public static float WXmax; public static float WYmax; public static int VXmin; public static int VYmin; public static int VXmax; public static int VYmax; public static float Vx; public static float Vy; public Form1() { InitializeComponent(); } private void InitializeComponent() { //this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(400, 300); this.Text="Pass Args"; this.Paint += new System.Windows.Forms.PaintEventHandler(this.doLine); } static void Main() { Application.Run(new Form1()); } private void doLine(object sender, System.Windows.Forms.PaintEventArgs e) { Graphics g = e.Graphics; g.FillRectangle(Brushes.White, this.ClientRectangle); Pen p = new Pen(Color.Black); g.DrawLine(p, 0, 0, 100, 100); p.Dispose(); } private void eachCornerPix (object sender, PaintEventArgs e, out float Wx, out float Wy, out float Vx, out float Vy) { Graphics g = this.CreateGraphics(); Pen penBlu = new Pen(Color.Blue, 2); SolidBrush redBrush = new SolidBrush(Color.Red); int width = 2; // 1 pixel wide in x int height = 2; float [] Wxc = {0.100f, 5.900f, 5.900f, 0.100f}; float [] Wyc = {0.100f, 0.100f, 3.900f, 3.900f}; for (int i = 0; i<3; i++) { Wx = Wxc[i]; Wy = Wyc[i]; Vx = ((Wx - WXmin)*((VXmax-VXmin)+VXmin)/(WXmax-WXmin)); Vy = ((Wy - WYmin)*(VYmax-VYmin)/(WYmax-WYmin)+VYmin); Console.WriteLine("eachCornerPix Vx= {0}", Vx); Console.WriteLine("eachCornerPix Vy= {0}", Vy); g.FillRectangle(redBrush, Vx, Vy, width, height); g.Dispose(); } // Desired effect: Use the array values (Wxc, Wyc) and re-assign them to Wx and Wy. Then use // Wx and Wy as components to calculate Vx and Vy. // My end goal...once compile issues are resolved, is to pass each array value listed // using this method. This should allow 4 xy point pairs to be plotted. // Errors: // pass1.cs(51,18): error CS0177: The out parameter 'Wx' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Wy' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Vx' must be assigned to before // control leaves the current method // pass1.cs(51,18): error CS0177: The out parameter 'Vy' must be assigned to before // control leaves the current method } }

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• WPF TabItem Custom ContentTemplate

  - by lloydsparkes

  I have been strugging with this for a while, it would have been simple to do in WindowForms. I am making a IRC Client, there will be a number of Tabs one for each channel connect to. Each Tab needs to show a number of things, UserList, MessageHistory, Topic. In WindowForms i would just have inherited from TabItem, added some Custom Properties, and Controls, and done. In WPF i am having some slight issues with working out how to do it. I have tried many ways of doing it, and below is my current method, but i cannot get the TextBox to bind to the Topic Property. <Style TargetType="{x:Type t:IRCTabItem}" BasedOn="{StaticResource {x:Type TabItem}}" > <Setter Property="ContentTemplate"> <Setter.Value> <DataTemplate> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="540" /> <ColumnDefinition /> </Grid.ColumnDefinitions> <StackPanel Grid.Column="0"> <TextBox Text="{Binding Topic, RelativeSource={RelativeSource AncestorType={x:Type t:IRCTabItem}}}" /> </StackPanel> </Grid> </DataTemplate> </Setter.Value> </Setter> </Style> And the Codebehind public class IRCTabItem : TabItem { static IRCTabItem() { //This OverrideMetadata call tells the system that this element wants to provide a style that is different than its base class. //This style is defined in themes\generic.xaml //DefaultStyleKeyProperty.OverrideMetadata(typeof(IRCTabItem), // new FrameworkPropertyMetadata(typeof(IRCTabItem))); } public static readonly RoutedEvent CloseTabEvent = EventManager.RegisterRoutedEvent("CloseTab", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(IRCTabItem)); public event RoutedEventHandler CloseTab { add { AddHandler(CloseTabEvent, value); } remove { RemoveHandler(CloseTabEvent, value); } } public override void OnApplyTemplate() { base.OnApplyTemplate(); Button closeButton = base.GetTemplateChild("PART_Close") as Button; if (closeButton != null) closeButton.Click += new System.Windows.RoutedEventHandler(closeButton_Click); } void closeButton_Click(object sender, System.Windows.RoutedEventArgs e) { this.RaiseEvent(new RoutedEventArgs(CloseTabEvent, this)); } public bool Closeable { get; set; } public static readonly DependencyProperty CloseableProperty = DependencyProperty.Register("Closeable", typeof(bool), typeof(IRCTabItem), new FrameworkPropertyMetadata(true, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault)); public List<String> UserList { get; set; } public static readonly DependencyProperty UserListProperty = DependencyProperty.Register("UserList", typeof(List<String>), typeof(IRCTabItem), new FrameworkPropertyMetadata(new List<String>(), FrameworkPropertyMetadataOptions.BindsTwoWayByDefault)); public String Topic { get; set; } public static readonly DependencyProperty TopicProperty = DependencyProperty.Register("Topic", typeof(String), typeof(IRCTabItem), new FrameworkPropertyMetadata("Not Connected", FrameworkPropertyMetadataOptions.BindsTwoWayByDefault)); public bool HasAlerts { get; set; } public static readonly DependencyProperty HasAlertsProperty = DependencyProperty.Register("HasAlerts", typeof(bool), typeof(IRCTabItem), new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault)); } So my questions are: Am i doing it the right way (best practices)? If so how can i bind DataTemplate to Properties? If not so, what is the correct way of achieve what i am trying to achieve?

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• How to take the snapshot of a IE webpage through a BHO (C#)

  - by Kapil

  Hi, I am trying to build an IE BHO in C# for taking the snapshot of a webpage loaded in the IE browser. Here is what I'm trying to do: public class ShowToolbarBHO : BandObjectLib.IObjectWithSite { IWebBrowser2 webBrowser = null; public void SetSite (Object site) { ....... if (site != null) { ...... webBrowser = (IWebBrowser2)site; ...... } } } Also, I p/invoke the following COM methods: [Guid("0000010D-0000-0000-C000-000000000046")] [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComImportAttribute()] public interface IViewObject { void Draw([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hdcTargetDev, IntPtr hdcDraw, [MarshalAs(UnmanagedType.LPStruct)] ref COMRECT lprcBounds, [In] IntPtr lprcWBounds, IntPtr pfnContinue, int dwContinue); int GetColorSet([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hicTargetDev, [Out] IntPtr ppColorSet); int Freeze([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, out IntPtr pdwFreeze); int Unfreeze([MarshalAs(UnmanagedType.U4)] int dwFreeze); int SetAdvise([MarshalAs(UnmanagedType.U4)] int aspects, [MarshalAs(UnmanagedType.U4)] int advf, [MarshalAs(UnmanagedType.Interface)] IAdviseSink pAdvSink); void GetAdvise([MarshalAs(UnmanagedType.LPArray)] out int[] paspects, [MarshalAs(UnmanagedType.LPArray)] out int[] advf, [MarshalAs(UnmanagedType.LPArray)] out IAdviseSink[] pAdvSink); } [StructLayoutAttribute(LayoutKind.Sequential)] public class COMRECT { public int left; public int top; public int right; public int bottom; public COMRECT() { } public COMRECT(int left, int top, int right, int bottom) { this.left = left; this.top = top; this.right = right; this.bottom = bottom; } } [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComVisibleAttribute(true)] [GuidAttribute("0000010F-0000-0000-C000-000000000046")] [ComImportAttribute()] public interface IAdviseSink { void OnDataChange([In]IntPtr pFormatetc, [In]IntPtr pStgmed); void OnViewChange([MarshalAs(UnmanagedType.U4)] int dwAspect, [MarshalAs(UnmanagedType.I4)] int lindex); void OnRename([MarshalAs(UnmanagedType.Interface)] object pmk); void OnSave(); void OnClose(); } Now When I take the snapshot: I make a call CaptureWebScreenImage((IHTMLDocument2) webBrowser.document); public static Image CaptureWebScreenImage(IHTMLDocument2 myDoc) { int heightsize = (int)getDocumentAttribute(myDoc, "scrollHeight"); int widthsize = (int)getDocumentAttribute(myDoc, "scrollWidth"); Bitmap finalImage = new Bitmap(widthsize, heightsize); Graphics gFinal = Graphics.FromImage(finalImage); COMRECT rect = new COMRECT(); rect.left = 0; rect.top = 0; rect.right = widthsize; rect.bottom = heightsize; IntPtr hDC = gFinal.GetHdc(); IViewObject vO = myDoc as IViewObject; vO.Draw(1, -1, (IntPtr)0, (IntPtr)0, (IntPtr)0, (IntPtr)hDC, ref rect, (IntPtr)0, (IntPtr)0, 0); gFinal.ReleaseHdc(); gFinal.Dispose(); return finalImage; } I am not getting the image of the webpage. Rather I am getting an image with black background. I am not sure if this is the right way of doing it, but I found over the web that IViewObject::Draw method is used for taking the image of a webpage in IE. I was earlier doing the image capture using the Native PrintWindow() method as mentioned in the following codeproject's page - http://www.codeproject.com/KB/graphics/IECapture.aspx But the image size is humongous! I was trying to see if I can reduce the size by using other techniques. It would be great if someone can point out the mistakes (I am sure there would be many) in my code above. Thanks, Kapil

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• Server Error in '/' Application. - The resource cannot be Found.

  - by Bigced_21

  I am new to ASP.NET MVC 2. I do not understand why I am receiving this error. Is there something missing that i'm not referencing correctly. I'm trying to create a simple jquery autocomplete online search textbox and view the details of the person that i select using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Ajax; using DOC_Kools.Models; namespace DOC_Kools.Controllers { public class HomeController : Controller { private KOOLSEntities _dataModel = new KOOLSEntities(); // // GET: /Home/ public ActionResult Index() { ViewData["Message"] = "Welcome to ASP.NET MVC!"; return View(); } // // GET: /Home/ public ActionResult getAjaxResult(string q) { string searchResult = string.Empty; var offenders = (from o in _dataModel.OffenderSet where o.LastName.Contains(q) orderby o.LastName select o).Take(10); foreach (Offender o in offenders) { searchResult += string.Format("{0}|r\n", o.LastName); } return Content(searchResult); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Search(string searchTerm) { if (searchTerm == string.Empty) { return View(); } else { // if the search contains only one result return detials // otherwise a list var offenders = from o in _dataModel.OffenderSet where o.LastName.Contains(searchTerm) orderby o.LastName select o; if (offenders.Count() == 0) { return View("not found"); } if (offenders.Count() > 1) { return View("List", offenders); } else { return RedirectToAction("Details", new { id = offenders.First().SPN }); } } } // // GET: /Home/Details/5 public ActionResult Details(int id) { return View(); } // // GET: /Home/Create public ActionResult Create() { return View(); } // // POST: /Home/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(FormCollection collection) { try { // TODO: Add insert logic here return RedirectToAction("Index"); } catch { return View(); } } // // GET: /Home/Edit/5 public ActionResult Edit(int id) { return View(); } // // POST: /Home/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, FormCollection collection) { try { // TODO: Add update logic here return RedirectToAction("Index"); } catch { return View(); } } public ActionResult About() { return View(); } } } using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Routing; namespace DOC_Kools { // Note: For instructions on enabling IIS6 or IIS7 classic mode, // visit http://go.microsoft.com/?LinkId=9394801 public class MvcApplication : System.Web.HttpApplication { public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); routes.MapRoute( "OffenderSearch", "Offenders/Search/{searchTerm}", new { controller = "Home", action = "Index", searchTerm = "" } ); routes.MapRoute( "OffenderAjaxSearch", "Offenders/getAjaxResult/", new { controller = "Home", action = "getAjaxResult" } ); } protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } } } <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<DOC_Kools.Models.Offender>" %> $(document).ready(function() { $("#searchTerm").autocomplete("/Offenders/getAjaxResult/"); }); Home Page <%= Html.Encode(ViewData["Message"]) % <h2>Look for an offender</h2> <form action="/Offenders/Search" method="post" id="searchForm"> <input type="text" name="searchTerm" id="searchTerm" value="" size="10" maxlength="30" /> <input type="submit" value="Search" /> </form> <br /> what do i have to do in order for the textbox search to display on the index page? What else do i have to do for the autocomplete to function correctly. i have the autocomplete.js & jquery.js added to the index.aspx view Any help will be appreciated so that i can get this working. Thanks!

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• Flex, Papervision3d: basic scenes, cameras, planes issue

  - by user157880

  // Import Papervision3D import org.papervision3d.Papervision3D; import org.papervision3d.scenes.; import org.papervision3d.cameras.; import org.papervision3d.objects.; import org.papervision3d.materials.; public var scene:Scene3D; public var camera:Camera3D; public var target:DisplayObject3D; public var screenshotArray: Array;//array to store pictures public var radius:Number; public var image:Image; private function initPapervision():void { target= new DisplayObject3D(); camera= new Camera3D(target); 1067: Implicit coercion of a value of type org.papervision3d.objects:DisplayObject3D to an unrelated type Number. scene= new Scene3D(thisContainer); 1137: Incorrect number of arguments. Expected no more than 0. scene.addChild( new DisplayObject3D() , "center" ); } public function handleCreationComplete():void { image = new Image(); image.source = "one_t.jpg"; image.maintainAspectRatio = true; image.scaleContent = false; image.autoLoad = false; image.addEventListener(Event.COMPLETE, handleImageLoad); image.load(); initPapervision(); } public function handleImageLoad(event:Event):void { init3D(); // onEnterFrame addEventListener( Event.ENTER_FRAME, loop3D ); addEventListener( MouseEvent.MOUSE_MOVE , handleMouseMove); } public function init3D():void { addScreenshots(20); } public function handleMouseMove(event:MouseEvent):void { camera.y = Math.max( thisContainer.mouseY*5 , -450 ); } public function addScreenshots(planeCount:Number):void { var obj:DisplayObject3D = scene.getChildByName ("center"); screenshotArray = new Array(planeCount); var texture:BitmapData = new BitmapData(image.content.loaderInfo.width, image.content.loaderInfo.height, false, 0); texture.draw(image); // Create texture with a bitmap from the library var materialSpace :MaterialObject3D = new BitmapMaterial(texture); materialSpace.doubleSided = true; materialSpace.smooth = false; radius = 500; camera.z = radius + 50; camera.y = 50; for (var i:Number = 0; i < planeCount; i++ ) { screenshotArray[i] = new Object() <b>screenshotArray[i].plane = new Plane( materialSpace, 100, 100, 2, 2 );</b> 1180: Call to a possibly undefined method Plane. // Position plane var rotation:Number = (360/planeCount)* i ; var rotationRadians:Number = (rotation-90) * (Math.PI/180); screenshotArray[i].rotation = rotation; screenshotArray[i].plane.z = (radius * Math.cos(rotationRadians) ) * -1; screenshotArray[i].plane.x = radius * Math.sin(rotationRadians) * -1; screenshotArray[i].plane.y = 100; screenshotArray[i].plane.lookAt(obj); // Add to scene scene.addChild( screenshotArray[i].plane ); } <b>scene.renderCamera(camera);</b> <i>1061: Call to a possibly undefined method renderCamera through a reference with static type org.papervision3d.scenes:Scene3D.</i> } public function loop3D(event:Event):void { var obj:DisplayObject3D = scene.getChildByName ("center"); for (var i:Number = 0; i < screenshotArray.length ; i++ ) { var rotation:Number = screenshotArray[i].rotation; rotation += (thisContainer.mouseX/50)/(screenshotArray.length/10); var rotationRadians:Number = (rotation-90) * (Math.PI/180); screenshotArray[i].rotation = rotation; screenshotArray[i].plane.z = (radius * Math.cos(rotationRadians) ) * -1; screenshotArray[i].plane.x = radius * Math.sin(rotationRadians) * -1; screenshotArray[i].plane.lookAt(obj); } //now lets render the scene <b>scene.renderCamera(camera);</b> <i>1061: Call to a possibly undefined method renderCamera through a reference with static type org.papervision3d.scenes:Scene3D.</i> } ]]

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• How to take the sanpshot of a IE webpage through a BHO (C#)

  - by Kapil

  Hi, I am trying to build an IE BHO in C# for taking the snapshot of a webpage loaded in the IE browser. Here is what I'm trying to do: public class ShowToolbarBHO : BandObjectLib.IObjectWithSite { IWebBrowser2 webBrowser = null; public void SetSite (Object site) { ....... if (site != null) { ...... webBrowser = (IWebBrowser2)site; ...... } } } Also, I p/invoke the following COM methods: [Guid("0000010D-0000-0000-C000-000000000046")] [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComImportAttribute()] public interface IViewObject { void Draw([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hdcTargetDev, IntPtr hdcDraw, [MarshalAs(UnmanagedType.LPStruct)] ref COMRECT lprcBounds, [In] IntPtr lprcWBounds, IntPtr pfnContinue, int dwContinue); int GetColorSet([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, [In] IntPtr ptd, IntPtr hicTargetDev, [Out] IntPtr ppColorSet); int Freeze([MarshalAs(UnmanagedType.U4)] int dwDrawAspect, int lindex, IntPtr pvAspect, out IntPtr pdwFreeze); int Unfreeze([MarshalAs(UnmanagedType.U4)] int dwFreeze); int SetAdvise([MarshalAs(UnmanagedType.U4)] int aspects, [MarshalAs(UnmanagedType.U4)] int advf, [MarshalAs(UnmanagedType.Interface)] IAdviseSink pAdvSink); void GetAdvise([MarshalAs(UnmanagedType.LPArray)] out int[] paspects, [MarshalAs(UnmanagedType.LPArray)] out int[] advf, [MarshalAs(UnmanagedType.LPArray)] out IAdviseSink[] pAdvSink); } [StructLayoutAttribute(LayoutKind.Sequential)] public class COMRECT { public int left; public int top; public int right; public int bottom; public COMRECT() { } public COMRECT(int left, int top, int right, int bottom) { this.left = left; this.top = top; this.right = right; this.bottom = bottom; } } [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] [ComVisibleAttribute(true)] [GuidAttribute("0000010F-0000-0000-C000-000000000046")] [ComImportAttribute()] public interface IAdviseSink { void OnDataChange([In]IntPtr pFormatetc, [In]IntPtr pStgmed); void OnViewChange([MarshalAs(UnmanagedType.U4)] int dwAspect, [MarshalAs(UnmanagedType.I4)] int lindex); void OnRename([MarshalAs(UnmanagedType.Interface)] object pmk); void OnSave(); void OnClose(); } Now When I take the snapshot: I make a call CaptureWebScreenImage((IHTMLDocument2) webBrowser.document); public static Image CaptureWebScreenImage(IHTMLDocument2 myDoc) { int heightsize = (int)getDocumentAttribute(myDoc, "scrollHeight"); int widthsize = (int)getDocumentAttribute(myDoc, "scrollWidth"); Bitmap finalImage = new Bitmap(widthsize, heightsize); Graphics gFinal = Graphics.FromImage(finalImage); COMRECT rect = new COMRECT(); rect.left = 0; rect.top = 0; rect.right = widthsize; rect.bottom = heightsize; IntPtr hDC = gFinal.GetHdc(); IViewObject vO = myDoc as IViewObject; vO.Draw(1, -1, (IntPtr)0, (IntPtr)0, (IntPtr)0, (IntPtr)hDC, ref rect, (IntPtr)0, (IntPtr)0, 0); gFinal.ReleaseHdc(); gFinal.Dispose(); return finalImage; } I am not getting the image of the webpage. Rather I am getting an image with black background. I am not sure if this is the right way of doing it, but I found over the web that IViewObject::Draw method is used for taking the image of a webpage in IE. I was earlier doing the image capture using the Native PrintWindow() method as mentioned in the following codeproject's page - http://www.codeproject.com/KB/graphics/IECapture.aspx But the image size is humongous! I was trying to see if I can reduce the size by using other techniques. It would be great if someone can point out the mistakes (I am sure there would be many) in my code above. Thanks, Kapil

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• Dependency Properties and Data Context in Silverlight 3

  - by Noam

  Hello, I am working with Silverlight 3 beta, and am having an issue. I have a page that has a user control that I worte on it. The user control has a dependency property on it. If the user control does not define a data context (hence using the parent's data context), all works well. But if the user control has its own data context, the dependency property's OnPropertyChanged method never gets called. Here is a sample: My Main Page: <UserControl x:Class="TestDepProp.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:app="clr-namespace:TestDepProp" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Width="400" Height="100"> <Grid x:Name="LayoutRoot" Background="White"> <Border BorderBrush="Blue" BorderThickness="3" CornerRadius="3"> <StackPanel Orientation="Horizontal"> <StackPanel Orientation="Vertical"> <TextBlock Text="Enter text here:" /> <TextBox x:Name="entryBlock" Text="{Binding Data, Mode=TwoWay}"/> <Button Content="Go!" Click="Button_Click" /> <TextBlock Text="{Binding Data}" /> </StackPanel> <Border BorderBrush="Blue" BorderThickness="3" CornerRadius="3" Margin="5"> <app:TestControl PropOnControl="{Binding Data}" /> </Border> </StackPanel> </Border> </Grid> </UserControl> Main Page code: using System.Windows; using System.Windows.Controls; namespace TestDepProp { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); MainPageData data = new MainPageData(); this.DataContext = data; } private void Button_Click(object sender, RoutedEventArgs e) { int i = 1; i++; } } } Main Page's data context: using System.ComponentModel; namespace TestDepProp { public class MainPageData:INotifyPropertyChanged { string _data; public string Data { get { return _data; } set { _data = value; if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Data")); } } public MainPageData() { Data = "Initial Value"; } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; #endregion } } Control XAML: <UserControl x:Class="TestDepProp.TestControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:app="clr-namespace:TestDepProp" > <Grid x:Name="LayoutRoot" Background="White"> <StackPanel Orientation="Vertical" Margin="10" > <TextBlock Text="This should change:" /> <TextBlock x:Name="ControlValue" Text="Not Set" /> </StackPanel> </Grid> </UserControl> Contol code: using System.Windows; using System.Windows.Controls; namespace TestDepProp { public partial class TestControl : UserControl { public TestControl() { InitializeComponent(); // Comment out next line for DP to work DataContext = new MyDataContext(); } #region PropOnControl Dependency Property public string PropOnControl { get { return (string)GetValue(PropOnControlProperty); } set { SetValue(PropOnControlProperty, value); } } public static readonly DependencyProperty PropOnControlProperty = DependencyProperty.Register("PropOnControl", typeof(string), typeof(TestControl), new PropertyMetadata(OnPropOnControlPropertyChanged)); private static void OnPropOnControlPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { TestControl _TestControl = d as TestControl; if (_TestControl != null) { _TestControl.ControlValue.Text = e.NewValue.ToString(); } } #endregion PropOnControl Dependency Property } } Control's data context: using System.ComponentModel; namespace TestDepProp { public class MyDataContext : INotifyPropertyChanged { #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; #endregion } } To try it out, type something in the text box, and hit the Go button. Comment out the data context in the controls code to see that it starts to work. Hope someone has an idea as to what is going on.

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